COMPUTERIZED SYSTEM Essay

musical arrangements techniques are tools utilise in the analysis, design, and financial support of system and subsystem relationships. They are largely graphical (pictorial) in nature.Systems techniques are used by accountants who do systems work.Documentation includes the following types of toolsNarratives (written descriptions)FlowchartsDiagramsOther written materialFor this subject, we only need to discuss two (2) of the most common documentation tools Data menses diagramsGraphical descriptions of the sources and destinations of data. They showWhere data comes fromHow it flowsThe processes performed on itWhere it goesInclude three typesDocument flowcharts describe the flow of documents and information between departments or units. System flowcharts describe the relationship between inputs, processing, and outputs for a system. Program flowcharts describe the sequence of logical operations performed in a computer program DATA take to the woods DIAGRAMS A data flow diagram (D FD) graphically describes the flow of data within an organization. It is used to Document existing systemsPlan and design new systems on that point is no black-and-white approach to developing a DFD.Data sources and destinationsAppear as squares mean organizations or individuals that send or receive data used or produced by the system An item can be both a source and a destinationData flowsAppear as arrowsRepresent the flow of data between sources and destinations, processes, and data stores As you probably surmised(GUESS) from the previous slides, if a data flow is two-way, use a bi-directional arrow.If two data elements flow together, then the use of one data flow line is appropriate.